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原文传递 DEVELOPING LONG-LASTING LOWER MAINTENANCE HIGHWAY PAVEMENT.

题名：	DEVELOPING LONG-LASTING LOWER MAINTENANCE HIGHWAY PAVEMENT.
关键词：	FEDERAL-HIGHWAY-ADMINISTRATION; RESEARCH-AND-TECHNOLOGY-COORDINATING-COMMITTEE; PAVEMENT-DESIGN; PAVEMENT-CONSTRUCTION; PAVEMENT-PERFORMANCE; RESEARCH-AND-DEVELOPMENT; PAVEMENT-DURABILITY; SERVICE-LIFE; COST-EFFECTIVENESS; PAVEMENT-MANAGEMENT-SYSTEMS; PAVEMENT-MAINTENANCE; LIFE-CYCLE-COSTS; HIGHWAY-USER-COSTS
摘要：	The Research and Technology Coordinating Committee (RTCC) provides continuing guidance to the Federal Highway Administration (FHWA) on highway research opportunities and priorities. The committee sought to determine whether it is possible, on the basis of current knowledge, to raise pavement design and construction standards to 50 years of service. The study found that pavement that lasts longer and requires less maintenance than current standard pavement is technologically feasible and is being pursued in several states. The current Long Term Pavement Performance Program could yield significant technical information to assist in developing long-lasting, lower maintenance pavement. Cost-effective implementation requires improved pavement management systems and a continuing commitment to pavement maintenance. A key component of pavement design, predicting traffic and loads, is extremely difficult and highly problematic as the design life becomes longer. State highway agencies have limited incentives for building long-lasting, lower maintenance pavements. However, for heavily trafficked highways, life-cycle costs accounting indicates that such pavement yields considerable benefits in reduced maintenance and highway user costs. Highway users generally support fees used to improve highways, so long-lasting, lower maintenance pavement can be a reality if the costs and benefits are articulated clearly and the users are assured that user fees are improving the highways they use. Because each aspect of the nation's highway system, including pavement design, pavement procurement and construction, pavement maintenance, and vehicle design and operation, is optimized independently, the overall system is considerably suboptimized. Incentives aimed at reducing project construction times could also be structured to yield longer lasting pavements. Well-focused research is needed to address remaining unresolved questions about long-lasting lower maintenance pavement.
总页数：	Public Roads. 1998/07. 62(1) pp23-31 (8 Phot.)
报告类型：	科技报告